I've been shooting pcp for years and, recently, in the last year or so, have been filling with a GX CS3 ( I also use a CS2 now and again). None of my current batch of eight rifles have been filled by me with anything else. However, some are used, and I have no idea how they were filled. Not knowing the pedigree of these rifles causes me to open them up and make sure there is no moisture in them to cause failure. i have two FX Royales, two HW100's, two Air Arms and a Brocock and a Crosman, as I said, some new, and some used. I am in the process of opening the two FX and Brocock to check them for moisture. Also, I've already opened the two HW's, and found no trace of moisture of any kind.
I had to buy a different wrench setup for the FX and Brocock as they use buddy bottles of CF and one aluminum on my older FX Royale. I ended up buying a Sabre Tactical wrench, clamp wrench and degass tool kit to open the bottles on rifles. I have to tell you, this is without a doubt the BEST way to open these bottles, no slipping, no damage to finish and you can easily remove even the tightest, loctited valve with very little effort. These are fantastically designed tools and I can't recommend them highly enough.
I have now opened the aluminum bottle and found it to be pristine, not a single trace of moisture, pics below. I'm currently in the process of opening all my guns, that aren't new to make sure there's no problems lurking in the depths.
I do run a double set of moisture filters and a third tiny filter with molecular sieve material in the two larger ones, and a cotton filter in the tiny one. This is in addition to the water separator in the CX3. I have recently been aware of some nasty failures of the cheap filter aluminum housings I've been using, so I decided to buy a single, larger filter housing that uses cartridges of molecular sieve, cotton and charcoal in one, which also has wall thicknesses considerably thicker than any of my current filters, and also has a burst disc, just to be on the safe side.
I'm happy that the GX compressors and Hill pumps I've used, have caused no moisture problems at all. I've also been very happy with the GX compressors, they are well built and work like a charm to fill guns, and if I should need parts, they are simply a phone call away.
Here are some pics of my two HW cylinders and my aluminum FX bottle after opening.
I had to buy a different wrench setup for the FX and Brocock as they use buddy bottles of CF and one aluminum on my older FX Royale. I ended up buying a Sabre Tactical wrench, clamp wrench and degass tool kit to open the bottles on rifles. I have to tell you, this is without a doubt the BEST way to open these bottles, no slipping, no damage to finish and you can easily remove even the tightest, loctited valve with very little effort. These are fantastically designed tools and I can't recommend them highly enough.
I have now opened the aluminum bottle and found it to be pristine, not a single trace of moisture, pics below. I'm currently in the process of opening all my guns, that aren't new to make sure there's no problems lurking in the depths.
I do run a double set of moisture filters and a third tiny filter with molecular sieve material in the two larger ones, and a cotton filter in the tiny one. This is in addition to the water separator in the CX3. I have recently been aware of some nasty failures of the cheap filter aluminum housings I've been using, so I decided to buy a single, larger filter housing that uses cartridges of molecular sieve, cotton and charcoal in one, which also has wall thicknesses considerably thicker than any of my current filters, and also has a burst disc, just to be on the safe side.
I'm happy that the GX compressors and Hill pumps I've used, have caused no moisture problems at all. I've also been very happy with the GX compressors, they are well built and work like a charm to fill guns, and if I should need parts, they are simply a phone call away.
Here are some pics of my two HW cylinders and my aluminum FX bottle after opening.
